CVE-2024-7347: nginx plus Out-of-bounds Read — Fix

Description

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module, which might allow an attacker to over-read NGINX worker memory resulting in its termination, using a specially crafted mp4 file. The issue only affects NGINX if it is built with the ngx_http_mp4_module and the mp4 directive is used in the configuration file. Additionally, the attack is possible only if an attacker can trigger the processing of a specially crafted mp4 file with the ngx_http_mp4_module. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

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CVSS v3.1 Score

4.7

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-126 CWE-126

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
f5	nginx_open_source	1.5.13 — 1.26.2
f5	nginx_open_source	All
f5	nginx_plus	r27 — r31
f5	nginx_plus	All
f5	nginx_plus	All
f5	nginx_plus	All

References

Advisories & Patches

https://my.f5.com/manage/s/article/K000140529

Other References

http://www.openwall.com/lists/oss-security/2024/08/14/4 https://lists.debian.org/debian-lts-announce/2025/03/msg00017.html

Frequently Asked Questions

What is CVE-2024-7347? +

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module, which might allow an attacker to over-read NGINX worker memory resulting in its termination, using a specially crafted mp4 file. The issue only affects NGINX if it is built with the ngx_http_mp4_module and the mp4 directive is used in the configuration file. Additionally, the attack is possible only if an attacker can trigger the processing of a specially crafted mp4 file with the ngx_http_mp4_module. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. It has a CVSS v3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2024-7347? +

CVE-2024-7347 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-7347? +

CVE-2024-7347 affects products from f5, specifically: nginx_open_source, nginx_plus. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-7347? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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